Guyss dial *566*6# you will get a message, follow that message, you can get a gift from airtel.
I get the A to A 10p/min and A to others 30p/min for just 50rupees. In fact the booster's rate is 100+only
This trick is working for most of the customers, let us see how many of them going to gift? After you getting the gift, post the gift what you got!!! And pls repute me